Salvo is a part of tree villages on Hatteras Island, locally known as The Tri-Villages (Rodanthe/Waves/Salvo). According to the legend, a Union ship proceeding north from Fort Hatteras sailed by this village during the Civil War. The commander of the ship inquired about its name. He was told that the village had no name on the Union Charts. The commander told the assistant “give it a salvo (fire a cannon) anyway” and the name Salvo was marked onto the Union Charts.